The Silicon Valley Auto Dealers Association has contributed $100,000.
Flooding in San Jose, Calif., has prompted the evacuation of at least 14,000 residents.
"They didn't have any warnings they said it was going to flood a little that's it gut they didn't tell us anything at all that this was going to happen", said Janet Martinez.
At least 225 residents were taken Tuesday to dry land and rinsed with soap and water to prevent them from being sickened by floodwaters that had traveled through engine fuel, garbage, debris and sewer lines.
Flood water is particularly harmful for horses, and can cause serious injury.
"We have an outlet at the base of that dam and that outlet has been opened fully 100 percent since January 9", said Santa Clara Valley Water District Emergency Operations Center PIO Rachel Gibson.
"This is a once-in-a-100-year flood event", National Weather Service meteorologist Roger Gass was quoted as saying by the Los Angeles Times.
"It's ironic, for years there was a drought and we never dreamed of trying to keep water out of those reservoirs", Oravec said. "There were cops saying that we had to evacuate", Cindy Salas said.
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Despite those priorities, the official said that it doesn't mean that everyone else is exempt from potential enforcement. Local and state law-enforcement officials will also be allowed to arrest unauthorised immigrants.
Five people stranded at a homeless camp were also rescued.
Flooding has become so severe in parts of San Jose that some residents are being rescued by boat.
In Monterey County, rising waters in the Carmel River, Santa Rita Creek and other waterways forced evacuation of several communities.
The area is getting a brief break from the rain, but a flood warning for central Santa Clara County will remain in effect until further notice.
For the first time in 20 years, the spillway gates of the Don Pedro Reservoir were opened Monday after more than 20 centimeters of rain fell in a 48-hour period. Red Cross officials say they'll be here as long as they are needed and will work with the city and county to help the evacuees.
"Clearly, there's a source in the creek where there's a significantly large amount of water that's rushing in", Liccardo said.
Some good news came from Lake Oroville: The water level there is expected to peak 45 feet below capacity by early Wednesday before the level begins dropping once again, Department of Water Resources Director Bill Croyle said. "We have been letting out as much water as we practically could". "This is more than the typical inundation". "I think right now we're just really focused on getting folks out of neighborhoods that are in peril", San Jose Mayor Sam Liccardo told reporters Tuesday.