Fortunately I live in the US and have readily accessible firearms and a plentiful supply of ammunition
That reminds me of "28 Days Later", where the good guys are trapped in an underpass trying to change a tire. Dozens of the infected come screaming at them.
Around here, we'd take a defensive position and empty the usual 30round-magazine-fed semi-auto rifles into the zombies instead of hurrying to fix the tire.
... it wouldnt be so suspenseful though