Just checked - those fireboats are literally the largest fireboats that San Diego harbor possesses. They have five of them. I can’t find any information on any USN fireboats. http://www.capecodfd.com/pages%20special/Fireboats_CA_San-Diego_FB_1.htm
Those puny boats pump 2.2k GPM compared with the 40k GPM of the boats a little farther north at Los Angeles.
Try getting an insurance policy for a house located in an area without a fire department.