I dont have one in my vehicles, but most people I know, carry a bottle of quick detailer, and a couple of microfiber towels..
Tree sap is a little harder to remove unless it just hit the paint and is still soft.
Once it dries and hardens, it can get harder to remove..
My go-to method for removing tree sap is the pointed end Q-tips, and the little metal can of Goof Off Professional.. I still find this product at Home Depot in the Paint Section, right where all the masking tape, masking paper, etc., is sold..
Get the vehicle in the shade, get good lighting..
Put a little of the product on the end of the pointed q-tip.
Put that pointed q-tip directly on the tree sap, move it around just a bit, blot that spot immediately with a cotton towel that is absorbent..
Look at the work and decide if you have to do it again..
Dan F