Keep it in your trunk. You have no idea how many times this has come in handy for me.
This survival shovel / entrenching tool from SOG is exactly what you need. I use mine for digging out fire pits/toilet pits and it’s a beast for its size. Very sturdy and durable and only $25 on Amazon
https://www.amazon.com/dp/B0038A05X6/ref=cm_sw_r_cp_awdb_t1_eRJVEbPP3RFMZ