I wouldn't quit and have it towed. Instead, remove the timing belt cover and look at your water pump while the engine is on. Redo the water pump install IMO - I bet that's your issue. Unless you are very careful with the install, the little gasket may fall out of the groove when you are putting it on (dab a little RTV on the gasket to hold it in place).

2gnt: '99 RS-T, killed by a toyota, pending rebuild...
Daily: Volt
Daily #2: '99 EVG ebike- STOLEN by PEDRO